linux-kernel - RE: [PATCH v2] extcon: Split out extcon header file for consumer and provider device

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Date:   Tue, 10 Oct 2017 10:36:42 +0000
From:   Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
To:     Chanwoo Choi <cw00.choi@...sung.com>,
        "balbi@...nel.org" <balbi@...nel.org>,
        "kishon@...com" <kishon@...com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:     "sre@...nel.org" <sre@...nel.org>,
        "lee.jones@...aro.org" <lee.jones@...aro.org>,
        "heiko@...ech.de" <heiko@...ech.de>,
        "krzk@...nel.org" <krzk@...nel.org>,
        "b.zolnierkie@...sung.com" <b.zolnierkie@...sung.com>,
        "maxime.ripard@...e-electrons.com" <maxime.ripard@...e-electrons.com>,
        "wens@...e.org" <wens@...e.org>,
        "chanwoo@...nel.org" <chanwoo@...nel.org>,
        "myungjoo.ham@...sung.com" <myungjoo.ham@...sung.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-rockchip@...ts.infradead.org" 
        <linux-rockchip@...ts.infradead.org>
Subject: RE: [PATCH v2] extcon: Split out extcon header file for consumer and
 provider device

Hi,

> From: Chanwoo Choi, Sent: Tuesday, October 10, 2017 7:18 PM
> 
> The extcon has two type of extcon devices as following.
> - 'extcon provider deivce' adds new extcon device and detect the
>    state/properties of external connector. Also, it notifies the
>    state/properties to the extcon consumer device.
> - 'extcon consumer device' gets the change state/properties
>    from extcon provider device.
> Prior to that, include/linux/extcon.h contains all exported API for
> both provider and consumer device driver. To clarify the meaning of
> header file and to remove the wrong use-case on consumer device,
> this patch separates into extcon.h and extcon-provider.h.
> 
> [Description for include/linux/{extcon.h|extcon-provider.h}]
> - extcon.h includes the extcon API and data structure for extcon consumer
>   device driver. This header file contains the following APIs:
>   : Register/unregister the notifier to catch the change of extcon device
>   : Get the extcon device instance
>   : Get the extcon device name
>   : Get the state of each external connector
>   : Get the property value of each external connector
>   : Get the property capability of each external connector
> 
> - extcon-provider.h includes the extcon API and data structure for extcon
>   provider device driver. This header file contains the following APIs:
>   : Include 'include/linux/extcon.h'
>   : Allocate the memory for extcon device instance
>   : Register/unregister extcon device
>   : Set the state of each external connector
>   : Set the property value of each external connector
>   : Set the property capability of each external connector
> 
> Cc: Felipe Balbi <balbi@...nel.org>
> Cc: Kishon Vijay Abraham I <kishon@...com>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Acked-by: Sebastian Reichel <sebastian.reichel@...labora.co.uk>
> Acked-by: Chen-Yu Tsai <wens@...e.org>
> Acked-by: Charles Keepax <ckeepax@...nsource.cirrus.com>
> Acked-by: Lee Jones <lee.jones@...aro.org>
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
> Changes from v1:
> - Don't touch drivers/usb/renesas_usbhs/common.h.
> - Add acked-by from Sebastian Reichel (for drivers/power/supply/)
> - Add acked-by from Chen-Yu Tsai (for phy-sun4i-usb.c & extcon-axp288.c)
> - Add acked-by from Charles Keepax (for drivers/extcon/extcon-arizona.c)
> - Add acked-by from Lee Jones (fo include/linux/mfd/palmas.h)
< snip >
>  drivers/phy/renesas/phy-rcar-gen3-usb2.c      |   2 +-

and

< snip >
>  drivers/usb/gadget/udc/renesas_usb3.c         |   2 +-

Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>

Best regards,
Yoshihiro Shimoda